surface subsidence的用法和樣例：
例句
- With the technics of purdah infusion to stem water, surface sinking of large area can be prevented.
采用帷幕注漿堵水工藝可防止大面積地表塌陷的發(fā)生。 - The ground collapse and cracks caused by underground mining severely threaten the safe in production and destroy the surface environment.
地下采礦引起的地表塌陷和裂縫，嚴重威脅礦山生產(chǎn)安全，破壞地表生態(tài)環(huán)境。
